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- W3083482995 endingPage "118866" @default.
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- W3083482995 abstract "The supported Ni catalysts on the magnesium silicate were synthesized via a co-precipitation method using urea. The influences of several factors such as time of urea decomposition (6–24 h), urea concentration (0.25–1 M), calcination temperature (600–800 °C), and the type of the surfactant (PVA and PEG) on the textural attributes and catalytic performance of the catalysts were investigated in details. XRD, BET, SEM, H2-TPR, and TPO were performed for synthesized catalysts characterization. The results showed that the variation of process factors led to significant changes in the surface properties of samples and resulted in the different catalytic performance in this reaction. With increasing the time of urea decomposition from 6 h to 24 h, urea concentration from 0.25 M to 1 M, and calcination temperature from 600 °C to 800 °C, the Ni/SiO2.MgO catalyst showed a decrease in surface area and good thermal stability. In particular, the best performance sample was obtained; the one with decomposition time of 24 h, the urea concentration of 0.5 M and the catalyst calcination temperature of 700 °C, with the specific area of 223.8 m2.g−1, and the methane conversion of 67% at GHSV of 24000 mL.h−1.gcat−1 and 600 °C." @default.
- W3083482995 created "2020-09-11" @default.
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- W3083482995 date "2021-01-01" @default.
- W3083482995 modified "2023-09-26" @default.
- W3083482995 title "Thermocatalytic decomposition of CH4 over Ni/SiO2.MgO catalysts prepared via surfactant-assisted urea precipitation method" @default.
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- W3083482995 doi "https://doi.org/10.1016/j.fuel.2020.118866" @default.
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